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Table 1 and Table 2 listed the elastic parameters and strength allowable values of the two composite materials.
Huang: J. of Composite materials, accepted
Huang, etc: World Journal of Engineering, Vol. 4 (2008) pp.842-844
Materials, Vols. 417-418 (2010) pp.861-864
Chang: J. of Composite materials, Vol. 21 (1987) p.834-855.

The existing researches on nanoscale machining process mostly focused on the simple structure of materials, had achieved some results, while the structure of complex compounds were relatively studied fewer.
(2) The cutting force gradually increases fluctuations in the nano-cutting process of Si3N4ceramic materials, and the cutting force increases along with cutting thickness increasing
Journal of Materials Processing Technology, 2002(129):105-108
Key Engineering Materials 2006, 315-316: 792-795
Advanced Materials Research Vols. 189-193 (2011) p 3097-3102.

Dielectric Properties of Mn, Co, and Ni-doped LaSrFeO3 Films with Different Annealing Atmosphere Yanglu Hou1, a, Xinghua Fu1, a, Wenhong Tao1, a, Hongdi Xue1, a 1School of Materials Science and Engineering, University of Jinan, Jinan, Shandong, 250022, China amse_fuxh@ujn.edu.cn Keywords: La0.5Sr0.5FeO3; dielectric properties; replace; annealing atmosphere.
Electronic Components and Materials, 2012, 31(005): 18-20 (In Chinese) [2] Braun A, Bayraktar D, Harvey A S, et al.
Materials research bulletin, 1984, 19(10): 1301-1309 [4] Kim M S, Yang J B, Cai Q, et al.
Journal of applied physics, 2002, 91(10): 7938-7940 [6] Braun A, Erat S, Bayraktar D, et al.
Chemistry of Materials, 2012, 24(8): 1529-1535

Introduction Carbon-carbon composites (C/C) are a new class of engineering materials that are ceramic in nature but exhibit brittle to pseudoplastic behaviour [1].
C/C composites have many advantages over traditional materials (low density, high specific strength and retention of mechanical properties at high temperatures) [2-4].
The use of high-velocity gas-thermal methods of coating formation, which impart high kinetic energy to powder particles while reducing their temperature, is expedient for obtaining coatings on the carbon-carbon materials surface.
Acknowledgements The study was financial supported by the Russian Science Foundation, under grant No 19-19-00274.
Studies were carried out on the equipment of the Joint Research Center «Technology and Materials» of Belgorod National Research University and the Centre for High Technologies of Belgorod State Technological University named after V.G.

Yield strength and its temperature dependence have been compared with those in the gamma and/or beta single phase materials.
The materials effect on the strength at 1000K is not included in Fig. 5, which is somewhat complex and interesting.
Abe and T.Hasegawa, in : Gamma Titanium Aluminides 1999, (1999) The Minerals, Metals & Materials Society, p. 733
Hasegawa, in : Thermec 2000, Processing and Manufacturing of Advanced Materials, (2000) , Journal of Materials Processing Technology, Elsevier Science, UK (2001) Vol.117/3 , CDROM Section E3 (2001)
Okamoto ( eds. ), in : Handbook of Ternary Alloy Phase Diagrams, Materials Park, PA (1995), ASM, Vol.4, p.4367

When the electrode kept on moving and pressed onto the substrate surface, current density in the discharge channel dropped rapidly and the accumulated heat reduced quickly, then the molten Stellite190 materials cooled and concreted onto the substrate surface.
Under the influence of local high temperature, substrate materials in HAZ took melting and cooling process repeatedly, and accordingly, microhardness in HAZ is slightly lower than other parts of the substrate.
An empirical formula between the tensile strength and microhardness of materials is given by [8]: (MPa) =3.602HV-118.7 (1) where is tensile strength (MPa) and HV is vickers hardness of material.
Gould: Welding Journal, Vol. 90 (2011), p. 191
Test and analysis on mechanical behavior of materials (Tsinghua University Press, Beijing 2007).

The results present the fatigue properties of materials rather than the real structures.
“High Cycle Fatigue of Structure Materials”1997, eds.
International Journal of Fatigue 58(2014)144-151
Materials Science and Engineering,2008(A473):147~152
Mechanics of Materials,2002(34):127–134.

Experimental Materials and Equipment.
Generally, sheets or materials with good weldability should adopt high-speed and thick plate or materials with bad weldability should reduce the welding speed.
Ren, Introduction to Metallic Materials Engineering.
Fundamentals of Materials Science.
Laser Journal Vol. 24 (2003) NO.5.

The chosen material is alloy steel 40Cr after quenched and tempered treatment.
Acknowledgment This project is supported by GuangDong Production, Education & Research under grant number 2009B090300044 and National Natural Science Foundation, China ( 50805025) as well as Doctoral Iniating Project of Guangdong University of Technology under grant number 405105015.
Mori: Materials Forum Vol. 29 (2005), p. 166-171
[8] Wu Min, Zhou Lai-shui, Wang Zhan-dong, An Lu-ling: Journal of Nanjing University of Aeronautics & Astronautics, China Vol.35(5)(2003), p. 552-557.

The study results will offer a useful material to understand the non-tidal fluctuation characteristics of Lianyungang coastal area.
Materials and methods Data acquisition.
Acknowledgements This study was supported by the natural science foundation of HuaiHai Institute of Technology (Grant No: KQ11009).
H.Liu: The empirical mode decomposition method and the Hilbert spectrum for non-stationary time series analysis, London. 1998 [4]Wang D.P: Journal of physical oceanography, Vol. 8 (1978), p. 225